//转义字符
//%d -打印整型
//%c -打印字符
//%s-打印字符串
//%f-打印float类型的数据
//%1f-打印double类型的数据
//%zu - 打印sizeo的返回值
#include<stdio.h>
#include<string.h>
int main()
{
    printf("%c\n",'\'');
    printf("%s\n","abc\0def");
    printf("c:\\test\\test.c");
    printf("\a");
    printf("%c\n-->\n",'\130');
    printf("%d\n",strlen("qwer t"));//?
    return 0;
}